Four families ( Xenopeltidae, Colubridae, Elapidae, Viperidae) and 30 species in Serpentes. 蛇亚目4科(闪鳞蛇科、游蛇科、眼镜蛇科、蝰科)30种。
The recently discovered coagulation factor ⅸ/ factor ⅹ binding protein family is widely present in the venom of viperidae snake, which is an unique subfamily in the C type animal lectin superfamily. 凝血因子Ⅸ/Ⅹ结合蛋白家族是近来发现的C型动物凝集素超家族中一个亚家族。
Snake Venom thrombin-like enzyme ( TLE) is a class of fibrinolytic activity of serine proteinases, In the Snake Venom of the most widely distributed Viperidae, the most abundant. 蛇毒类凝血酶是一类具有溶纤活性的丝氨酸蛋白酶类,在蝰科蛇类的蛇毒中分布最广,含量最为丰富。